As I've been working through the overwhelming amount of technical capabilities on my first digital camera (NEX-7), since using Canon FD lenses on my Canon A1's back in film days, more and more things are becoming 2nd nature as I learn the camera's ins & outs...becoming less and less overwhelming. For the first several months I mainly set ISO and used Aperture mode, letting the camera pick the shutter speed...simple approach, etc. Then recently I spent a couple months using Shutter mode, setting the Aperture, and using AUTOISO to pick the ISO...but had too many noisy shots from high ISO settings for my liking. Today I decided I was ready to explore full manual...and so far, I'm impressed...very optimistic that this may be an overall best solution for me. I'm pretty comfortable selecting ISO based upon conditions, and basically just use 100/200/400 depending on intensity of light levels...so I do that first. Then I set the shutter speed to be at least the reciprocal of the lens I'm using...for hand holding a step or two above focal length. (ie: 135mm I set shutter at 160 or 200) THEN...when setting Aperture...the nice surprise I found with full Manual mode is a "MM" scale across the bottom of the screen. It tells me if my exposure is going to be correct...( sitting on "0" )...or under exposed by -1, -2, etc....or over exposed by +1, +2, etc. So far I've just been tweaking exposure with changes to aperture settings, using that "MM scale". For me at least, it seems like a straight forward way to deal with exposure using all manual lenses.....progress...so far, so good.